/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import React from 'react'
import { Form, Input, notification, Select } from 'antd'
import { useIntl } from 'umi'
import type { FormInstance } from 'antd/lib/form'

type Props = {
  form: FormInstance
  readonly?: boolean
}

const Component: React.FC<Props> = ({ form, readonly }) => {
  const { formatMessage } = useIntl()

  const options = [
    {
      value: "pass",
      label: formatMessage({ id: 'page.upstream.step.pass-host.pass' })
    }, {
      value: "node",
      label: formatMessage({ id: 'page.upstream.step.pass-host.node' })
    }, {
      value: "rewrite",
      label: formatMessage({ id: 'page.upstream.step.pass-host.rewrite' }),
      disabled: true
    }
  ]

  return (
    <React.Fragment>
      <Form.Item
        label={formatMessage({ id: 'page.upstream.step.pass-host' })}
        name="pass_host"
        initialValue="pass"
      >
        <Select disabled={readonly}>
          {options.map(item => (
            <Select.Option value={item.value} key={item.value} disabled={item.disabled}>
              {item.label}
            </Select.Option>
          ))}
        </Select>
      </Form.Item>
      <Form.Item
        noStyle
        shouldUpdate={(prev, next) => {
          return prev.pass_host !== next.pass_host;
        }}
      >
        {() => {
          if (form.getFieldValue('pass_host') === 'rewrite') {
            return (
              <Form.Item
                label={formatMessage({ id: 'page.upstream.step.pass-host.upstream_host' })}
                name="upstream_host"
                rules={[
                  {
                    required: true,
                    message: "",
                  },
                ]}
              >
                <Input disabled={readonly} placeholder={formatMessage({ id: `page.upstream.upstream_host.required` })} />
              </Form.Item>
            );
          }

          if (form.getFieldValue('pass_host') === 'node' && (form.getFieldValue('nodes') || []).length !== 1) {
            notification.warning({
              message: formatMessage({id: 'component.upstream.other.pass_host-with-multiple-nodes.title'}),
              description: formatMessage({id: 'component.upstream.other.pass_host-with-multiple-nodes'})
            })
            form.setFieldsValue({pass_host: 'pass'})
          }
          return null;
        }}
      </Form.Item>
    </React.Fragment>
  )
}

export default Component
